Where causes a good thing or bad thing during WW1

i dont know if this is what you're talking about but i hope it helps

Explanation:

The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. In June 1914, a Serbian-nationalist terrorist group called the Black Hand sent groups to assassinate the Archduke.

the combination of hand-operated joystick and foot-operated rudder control as used to the present day to operate the aircraft control surfaces.

hope it helped!